Product comparison · 2 internal hard drives

Samsung 160GB Serial ATA II HDD, 20-PK vs Samsung 40GB Ultra-ATA/133 HDD, 20-PK

25specifications compared
8differ
17identical
2known for one product only

Key differences

The Samsung 160GB Serial ATA II HDD, 20-PK has 120 GB more HDD capacity than the Samsung 40GB Ultra-ATA/133 HDD, 20-PK (160 GB vs 40 GB). The Samsung 160GB Serial ATA II HDD, 20-PK has 6 MB more storage drive buffer size than the Samsung 40GB Ultra-ATA/133 HDD, 20-PK (8 MB vs 2 MB). The Samsung 160GB Serial ATA II HDD, 20-PK has 100,000 h more mean time between failures (MTBF) than the Samsung 40GB Ultra-ATA/133 HDD, 20-PK (600000 h vs 500000 h). Interface: Serial ATA II on the Samsung 160GB Serial ATA II HDD, 20-PK, Ultra-ATA/133 on the Samsung 40GB Ultra-ATA/133 HDD, 20-PK. Operating temperature (T-T): 0 - 60 °C on the Samsung 160GB Serial ATA II HDD, 20-PK, 5 - 55 °C on the Samsung 40GB Ultra-ATA/133 HDD, 20-PK.

HDD capacity
- 160GB Serial ATA II HDD, 20-PK:160 GB
- 40GB Ultra-ATA/133 HDD, 20-PK:40 GB
Interface
- 160GB Serial ATA II HDD, 20-PK:Serial ATA II
- 40GB Ultra-ATA/133 HDD, 20-PK:Ultra-ATA/133
Storage drive buffer size
- 160GB Serial ATA II HDD, 20-PK:8 MB
- 40GB Ultra-ATA/133 HDD, 20-PK:2 MB
Mean time between failures (MTBF)
- 160GB Serial ATA II HDD, 20-PK:600000 h
- 40GB Ultra-ATA/133 HDD, 20-PK:500000 h
Power consumption (typical)
- 160GB Serial ATA II HDD, 20-PK:8 W
- 40GB Ultra-ATA/133 HDD, 20-PK:7.1 W
Power consumption (standby)
- 160GB Serial ATA II HDD, 20-PK:1.5 W
- 40GB Ultra-ATA/133 HDD, 20-PK:0.5 W
Power consumption (PowerSave)
- 160GB Serial ATA II HDD, 20-PK:1.5 W
- 40GB Ultra-ATA/133 HDD, 20-PK:0.5 W
Operating temperature (T-T)
- 160GB Serial ATA II HDD, 20-PK:0 - 60 °C
- 40GB Ultra-ATA/133 HDD, 20-PK:5 - 55 °C

Side by side

Differences highlightedShow differences only

Comparison of 160GB Serial ATA II HDD, 20-PK, 40GB Ultra-ATA/133 HDD, 20-PK
27 specifications	A Samsung 160GB Serial ATA II HDD, 20-PK View product	B Samsung 40GB Ultra-ATA/133 HDD, 20-PK View product
Features4 differ
HDD capacityDiffers	160 GB	40 GB
HDD speed	7200 RPM	7200 RPM
HDD size	3.5"	3.5"
InterfaceDiffers	Serial ATA II	Ultra-ATA/133
Storage drive buffer sizeDiffers	8 MB	2 MB
Full stroke seek time	18 ms	18 ms
Track to track seek time	0.8 ms	0.8 ms
Average seek time	8.9 ms	8.9 ms
Average latency	4.17 ms	4.17 ms
Bytes per sector	512	512
Mean time between failures (MTBF)Differs	600000 h	500000 h
Power3 differ
Power consumption (typical)Differs	8 W	7.1 W
Power consumption (standby)Differs	1.5 W	0.5 W
Power consumption (PowerSave)Differs	1.5 W	0.5 W
Operating voltage	5 / 12 V	5 / 12 V
Operational conditions1 differ
Operating temperature (T-T)Differs	0 - 60 °C	5 - 55 °C
Storage temperature (T-T)	-40 - 70 °C	-40 - 70 °C
Operating relative humidity (H-H)	5 - 90%	5 - 90%
Storage relative humidity (H-H)	5 - 95%	5 - 95%
Non-operating altitude	12000	12000
Operating shock	63 G	63 G
Non-operating shock	350 G	350 G
Other featuresidentical
HDD transfer rateKnown for one	300 Mbit/s	Unknown — not stated by the source
Power requirements	+5V / +12V	+5V / +12V
Drive ready time	7 s	7 s
Internal	Yes	Yes
Drive device, transfer rateKnown for one	Unknown — not stated by the source	133 MB/s

A dash means the value is not stated by the source. Unknown values are never counted for or against a product, and there is no overall score.

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